//---------------------------------------------------------------------------
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//---------------------------------------------------------------------------
//
//  gethumd.c - This utility gets the Volts for pins Vad and Vdd from the DS2438.
//
//  Version:   2.00
//  History:

#include <stdio.h>
#include "ownet.h"
#include "atod26.h"
#include "findtype.h"

#define MAXDEVICES 5
#define ONEKBITADD 0x89


//----------------------------------------------------------------------
//  This is the Main routine for debit
//
int main(short argc, char **argv)
{
   char msg[200];
   int portnum = 0;
   float Vdd,Vad;
   double humid,temp;
   int i;
   int numbat,cnt=0;
   uchar famvolt[MAXDEVICES][8];

   // check for required port name
   if (argc != 2)
   {
      sprintf(msg,"1-Wire Net name required on command line!\n"
                  " (example: \"COM1\" (Win32 DS2480),\"/dev/cua0\" "
                  "(Linux DS2480),\"{1,5}\" (Win32 TMEX)\n");
      printf("%s",msg);
      return 0;
   }

   if((portnum = owAcquireEx(argv[1])) < 0)
   {
      printf("Failed to acquire port.\n");
      return 0;
   }
   else
   {

      do
      {
         numbat = FindDevices(portnum,&famvolt[0],SBATTERY_FAM,MAXDEVICES);

         if(numbat == 0)
         {
            if(cnt > 1000)
            {
               cnt = 0;
               printf("No humidity buttons found.\n");
            }
            else
            {
               cnt++;
            }
         }
         else
         {
            for(i=0;i<numbat;i++)
            {
               Vdd = ReadAtoD(portnum,TRUE,&famvolt[0][0]);
               if(Vdd > 5.8)
               {
                  Vdd = (float)5.8;
               }
               else if(Vdd < 4.0)
               {
                  Vdd = (float) 4.0;
               }

               Vad = ReadAtoD(portnum,FALSE,&famvolt[0][0]);

               temp = Get_Temperature(portnum,&famvolt[0][0]);

               humid = (((Vad/Vdd) - 0.16)/0.0062)/(1.0546 - 0.00216 * temp);
               if(humid > 100)
               {
                  humid = 100;
               }
               else if(humid < 0)
               {
                  humid = 0;
               }

               printf("\n");
               printf("The humidity is:  %4.4f\n", humid);
               printf("Given that the temp was:   %2.2f\n", temp);
               printf("and the volt supply was:   %2.2f\n", Vdd);
               printf("with the volt output was:  %2.2f\n", Vad);
               printf("\n");

            }//for loop
         }

      }while(!key_abort());

      owRelease(portnum);
      printf("Port released.\n");

   }

   return 1;
}
